Eleaf Digital Ohmmeter & Voltmeter

 This device is designed to test the resistance and voltage of vaping products.  The unit is very compact to allow for easy storage.  The unit is powered by 2 AA batteries that are not included.  The posts are eGo threaded, and there is an included connector to use them with 510 threaded devices.  The left post marked with a V is for measuring the voltage of batteries only, and the right post marked with a Ω is for measuring the resistance of Atomizers and Cartomizers only.   Features:eGo and 510 Thread CompatibleAccurately Measures Voltage and ResistanceCompact Size Specifications:Range for Tested Resistance:  0.01Ω to 9.99ΩRange for Tested Voltage:  0.01V to 9.99VOperating Voltage:  2.2V to 5.5VWorking Current:  Less than 10mAh with no tested object; less than 30mAh with tesed objectStandby Power Consumption:  Less than 10uA In The Box:1 Meter Device1 Connector (packaged in the battery compartment) This device requires 2 AA batteries that are not included.